
.loading {
    height: 100px;
    text-align: center;
    position: fixed;
    left: 40%;
    top: 50%;
    width: 20%;
    z-index: 11111;
    .overlay .fa-spin:before {
        color: #d9d9d9;
        font-size: 24px;
    }
    .overlay .fa-spin {
        margin-right: 12px;
    }
    .overlay {
        height: 100px;
        line-height: 100px;
        background: #fff;
        z-index: 10001;
        position: relative;
        border-radius: 15px;
    }
}
.loading:before{
    content:"";
    z-index: 10000;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.3;
    position: fixed;
    left: 0;
    top:0;
}